Last update 08 May 2025

NPC1L1

Basic Info

Synonyms
Niemann-Pick C1-like protein 1, NPC1 (Niemann-Pick disease, type C1, gene)-like 1, NPC1 like 1
+ [6]
Introduction
Plays a major role in cholesterol homeostasis (PubMed:22095670). Critical for the uptake of cholesterol across the plasma membrane of the intestinal enterocyte (PubMed:22095670). Involved in plant sterol absorption, it transports sitosterol, although at lower rates than cholesterol (By similarity). Is the direct molecular target of ezetimibe, a drug that inhibits cholesterol absorption and is approved for the treatment of hypercholesterolemia (PubMed:15928087). May have a function in the transport of multiple lipids and their homeostasis, thereby influencing lipid metabolism regulation (PubMed:15671032). May be involved in caveolin trafficking from the plasma membrane (By similarity). In addition, acts as a negative regulator of NPC2 and down-regulates its expression and secretion by inhibiting its maturation and accelerating its degradation (PubMed:22095670).

Analysis

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